Multicast VPN State Damping (RFC7899)
Original Publication Date: 2016-Jun-01
Included in the Prior Art Database: 2016-Jun-29
Internet Society Requests For Comment (RFCs)
T. Morin: AUTHOR [+7]
In a multicast VPN [RFC6513] deployed with BGP-based procedures [RFC6514], when receivers in VPN sites join and leave a given multicast group or channel through multicast membership control protocols (Internet Group Management Protocol (IGMP) [RFC3376] and Multicast Listener Discovery (MLD) [RFC3810]), multicast routing protocols accordingly adjust multicast routing states and P-multicast tree states to forward or prune multicast traffic to these receivers. Similar challenges arise in the context of the multicast specification for Virtual Private LAN Service (VPLS) [RFC7117].
Internet Engineering Task Force (IETF) T. Morin, Ed. Request for Comments: 7899 S. Litkowski Updates: 6514 Orange Category: Standards Track K. Patel ISSN: 2070-1721 Cisco Systems Z. Zhang R. Kebler J. Haas Juniper Networks June 2016
Multicast VPN State Damping
This document describes procedures to damp Multicast VPN (MVPN) routing state changes and control the effect of the churn due to the multicast dynamicity in customer sites. The procedures described in this document are applicable to BGP-based multicast VPN and help avoid uncontrolled control-plane load increase in the core routing infrastructure. The new procedures proposed were inspired by BGP unicast route damping principles that have been adapted to multicast.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7899.
Morin, et al. Standards Track [Page 1]
RFC 7899 MVPN Damping June 2016
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